PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-00:27:50
G01     320.2          14.9               -4.0 +/-   33.84     -10.0 +/-   33.84  0.140 / 0.300
G08     259.2          15.0                8.7 +/-    2.33      21.7 +/-    2.33  0.130 / 0.300
G10     74.2           54.8                9.0 +/-    0.32      10.8 +/-    0.32  0.030 / 0.040
G11     305.5          21.9                6.9 +/-    1.61      14.4 +/-    1.61  0.040 / 0.040
G14     284.0          69.2                8.0 +/-    0.78       8.5 +/-    0.78  0.120 / 0.270
G18     307.2          38.6                7.2 +/-    1.61      10.7 +/-    1.61  0.290 / 0.260
G20     102.1          31.7                8.7 +/-    0.77      14.8 +/-    0.77  0.140 / 0.250
G27     227.5          11.4               10.3 +/-    2.29      28.0 +/-    2.29  0.080 / 0.180
G31     176.4          38.5                9.6 +/-    1.40      14.2 +/-    1.40  0.140 / 0.250
G32     2.7            69.4                7.2 +/-    0.46       7.7 +/-    0.46  0.120 / 0.310